基于流量传感器4000次变温度循环试验的研究  

Research on 4000 Cycles of Variable Temperature Test Based on Flow Sensor

作　　者：赵玉敏 梁月 李毅 王天宇 王炎 高进胜 张嘉梁 ZHAO Yumin;LIANG Yue;LI Yi;WANG Tianyu;WANG Yan;GAO Jinsheng;ZHANG Jialiang(Shandong Institute of Metrology,Jinan 250014,China)

机构地区：[1]山东省计量科学研究院,济南250014

出　　处：《计量科学与技术》2022年第2期65-68,共4页Metrology Science and Technology

摘　　要：热量表作为热计量贸易结算的重要计量器具,必须保证计量的准确性和长期可靠性。国产热量表投入市场后质量问题频出,部分已被进口产品取代。国产表在使用中出现的问题虽然很多,但最终都归结于长期稳定性不好。反映到试验测试上,即为耐久性测试试验,该试验也是国产热量表与欧洲产品标准在技术要求上最大、最重要的差别项目。本试验针对国产热量表建立基于4 000次变温度试验的研究,与2 400 h+300 h试验方式进行比较,实现国产表耐久性评估的完善与延续,在国内首次实现对热量表长期应用性实验室条件下的全面技术评估,提升我国热量表产品质量水平,推动热量表行业转型升级,促进供热计量改革的进行。As an important measuring instrument in the trade settlement of heat measurement, the heat meter must ensure the accuracy and long-term reliability. Domestic heat meters have been put into the market with frequent quality problems,and some of them have been replaced by imported products. Although there are many problems in the use of domestic meters, they are ultimately attributed to poor long-term stability. This is reflected in the durability test, which is also the biggest and most important difference between domestic heat meters and European product standards in terms of technical requirements. This test establishes a study based on 4000 cycles of variable temperature test for domestic heat meters and compares it with the 2400 h+300 h test method, so as to realize the improvement and continuation of durability evaluation of domestic heat meter. It is the first time in China to realize comprehensive technical evaluation of heat meters under longterm application laboratory conditions, which contributes to improving the level of heat meter product quality in China,promoting the transformation and upgrading of the heat meter industry, and facilitating the heat supply metering reform.

关 键 词：热量表流量传感器 耐久性 4000次变温度试验 2400 h变流量试验 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TB941[自动化与计算机技术—控制科学与工程]